Inventor · disambiguated record
William L. Schaefer
Also filed as: SCHAEFER WILLIAM L
23 granted patents·309 citations·filing 1975–2002
96Inventor score
Top patents by PatentIndex Score
23 records- 0188US3996032AInsulated heater tray for making glass fibers and method for using samePPG INDUSTRIES INC·Filed 1975·Granted Dec 7, 1976·32 cites·9 claims
- 0286US4735642AHollow glass fiber bushing assemblyPPG INDUSTRIES INC·Filed 1986·Granted Apr 5, 1988·65 cites·19 claims
- 0384US4045196AMethod and apparatus for chopping glass strandsPPG INDUSTRIES INC·Filed 1976·Granted Aug 30, 1977·32 cites·14 claims
- 0474US4043779AApparatus for chopping coated glass fibersPPG INDUSTRIES INC·Filed 1976·Granted Aug 23, 1977·27 cites·10 claims
- 0566US4964891AProgrammably controlled fiber glass strand feeders and improved methods for making glass fiber matsPPG INDUSTRIES INC·Filed 1988·Granted Oct 23, 1990·33 cites·21 claims
- 0664US4088469AEnvironmental control of a glass fiber forming bushingPPG INDUSTRIES INC·Filed 1977·Granted May 9, 1978·14 cites·5 claims
- 0755USD335203SWarm-up suitFIGGIE INT INC·Filed 1990·Granted May 4, 1993·8 cites·1 claims
- 0855US4566888ABushing constructionPPG INDUSTRIES INC·Filed 1985·Granted Jan 28, 1986·11 cites·18 claims
- 0950US5797557AApparatus, systems and methods for transporting a cylindrical packagePPG INDUSTRIES INC·Filed 1997·Granted Aug 25, 1998·19 cites·21 claims
- 1047US4024647ATemperature controlled heater trayPPG INDUSTRIES INC·Filed 1976·Granted May 24, 1977·9 cites·5 claims
- 1145US6284133B1Bio aeratorSHELL OIL CO·Filed 1995·Granted Sep 4, 2001·15 cites·5 claims
- 1245USD333374SWarm-up suitFIGGIE INT INC·Filed 1990·Granted Feb 23, 1993·5 cites·1 claims
- 1342US4955999AStationary strand deflector for continuous strand manufacturePPG INDUSTRIES INC·Filed 1989·Granted Sep 11, 1990·10 cites·6 claims
- 1441US4704149AHollow fiber bushing tipPPG INDUSTRIES INC·Filed 1986·Granted Nov 3, 1987·6 cites·7 claims
- 1538USD335205SWarm-up suitFIGGIE INT INC·Filed 1990·Granted May 4, 1993·3 cites·1 claims
- 1638USD332686SWarm-up suitFIGGIE INT INC·Filed 1990·Granted Jan 26, 1993·3 cites·1 claims
- 1735USD335204SWarm-up suitFIGGIE INT INC·Filed 1990·Granted May 4, 1993·2 cites·1 claims
- 1833US4071342AApparatus for forming glass fibersPPG INDUSTRIES INC·Filed 1977·Granted Jan 31, 1978·5 cites·11 claims
- 1932US5184909ADispenser for sealants with specific bristle arrangementFEL PRO INC·Filed 1992·Granted Feb 9, 1993·7 cites·6 claims
- 2032US4591371AGlass fiber forming bushing constructionPPG INDUSTRIES INC·Filed 1985·Granted May 27, 1986·2 cites·3 claims
- 2129US6845698B2Systems and methods for severing elongated materialPPG IND OHIO INC·Filed 2002·Granted Jan 25, 2005·0 cites·16 claims
- 2229US3965563AMethod and apparatus for removing cutting blades from an annular cutting headPPG INDUSTRIES INC·Filed 1975·Granted Jun 29, 1976·1 cites·7 claims
- 2328USD335945SWarm-up suitFIGGIE INT INC·Filed 1990·Granted Jun 1, 1993·0 cites·1 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →